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Barreras evasivas: los desafíos del diagnóstico de las membranas subaórticas
Malik Alqawasmi1, Karla Almaraz2, Jennifer Febbo3
1Department of Internal Medicine, University of New Mexico, Albuquerque, NM 87131, USA.
The American journal of cardiology
|August 27, 2025
Resumen
La estenosis aórtica subvalvular (SAS) debido a las membranas subaórticas (SAoM) puede ser difícil de diagnosticar. La imagen multimodal, especialmente la ecocardiografía transesofágica 3D (TEE), es crucial para una identificación precisa y un tratamiento adecuado.
Área de la Ciencia:
- Cardiología
- Imágenes médicas
Sus antecedentes:
- La estenosis aórtica subvalvular (SAS) es una obstrucción rara del tracto de flujo ventricular izquierdo, siendo las membranas subaórticas (SAoM) la causa más común.
- El diagnóstico puede ser difícil con la ecocardiografía transtorácica estándar (ETT), que a menudo requiere modalidades avanzadas de imágenes.
Objetivo del estudio:
- Para resaltar los desafíos de diagnóstico de SAoM y la importancia de las imágenes multimodales.
- Presentar casos en los que el SAoM fue difícil de detectar inicialmente.
Principales métodos:
- Serie de casos que examinan dos casos complejos de SAoM.
- Utilizó ecocardiografía transtorácica (ETT), ecocardiograma transesofágico (ETE), imágenes de resonancia magnética cardíaca (RMA) y EET 3D.
Principales resultados:
- El TTE inicial, el TEE y el CMR no detectaron una membrana subaórtica en un caso; el TEE 3D lo identificó, alterando el tratamiento de la angioplastia a la cirugía.
- Se encontró que un paciente diagnosticado inicialmente con miocardiopatía obstructiva hipertrófica (HOCM) tenía SAoM a través de TEE, lo que condujo a un tratamiento médico ajustado y a una derivación quirúrgica.
Conclusiones:
- SAoM puede evadir la detección por TTE inicial y CMR, subrayando la necesidad de imágenes avanzadas como 3D TEE.
- La diferenciación precisa de SAoM de otras condiciones como HOCM es vital para el manejo adecuado y evitar el diagnóstico erróneo.
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